13242245321 has 8 divisors (see below), whose sum is σ = 13840102920. Its totient is φ = 12653803008.

The previous prime is 13242245311. The next prime is 13242245369. The reversal of 13242245321 is 12354224231.

It can be written as a sum of positive squares in 4 ways, for example, as 2443918096 + 10798327225 = 49436^2 + 103915^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13242245321 is a prime.

It is a super-2 number, since 2×13242245321² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13242245311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2350946 + ... + 2356571.

It is an arithmetic number, because the mean of its divisors is an integer number (1730012865).

Almost surely, 2^13242245321 is an apocalyptic number.

It is an amenable number.

13242245321 is a deficient number, since it is larger than the sum of its proper divisors (597857599).

13242245321 is an equidigital number, since it uses as much as digits as its factorization.

13242245321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4707643.

The product of its digits is 11520, while the sum is 29.

Adding to 13242245321 its reverse (12354224231), we get a palindrome (25596469552).

The spelling of 13242245321 in words is "thirteen billion, two hundred forty-two million, two hundred forty-five thousand, three hundred twenty-one".